Bracket Talk
Low Oil Pressure Warning Light
January 14, 2021, 04:38 PM
BG7X77Low Oil Pressure Warning Light
What type, where so you dont miss it, size, what setting do you use? 10,20,30? AND IS Aesthetically pleasing! I am not putting that big oval ugly ass light on my dash. Srry no offense meant to present users! I know it works!!! The smaller ones I'm worried aren't that noticable. Anyone have any "slick" ideas in use?
Lining the entire headliner with rainbow colored LEDs and a speaker blaring SHUT IT OFF A#*#H#%$e Idea Didnt pass muster with the weight reduction and public relations department so I'm seeking help from the DRR crew.
BG
January 14, 2021, 05:09 PM
Canted ValveI used an amber 1156 or ll57 bulb through a rubber grommet in a sheet metal dash @ 20#. Would post a pic but it's to much of a hassle on this forum.
Illegitimi non carborundum
January 14, 2021, 05:24 PM
DragRaceResults2 small led light above on each side of oil pressure gauge. Very bright, can't miss them. 20lb sensor.
January 14, 2021, 05:29 PM
BG7X77Slick. I like that. Thanks! 20 sounds like a winner.
BG
January 14, 2021, 08:35 PM
adv ET 266This is about what I used. Mount one high and centered in dash
Oznium Brightest Light Bolt - Flush Mount 12V LED Light for Bumper, Grille, Cars Interior, Dash, Ambient Lighting, Motorcycle w/Sleek Aluminum Housing & Screw Nut (6 mm Black, Red LED)
https://smile.amazon.com/dp/B0..._glc_i_Q8paGbNE2C6QS
2005 2000lb 4 link dragster
home brew 582 BBC Dart 355
1.058
2.98
4.629@149
6.094
7.310@185
January 14, 2021, 08:38 PM
markemarkI use this adjustable sender set to 40 psi.
LongacreJanuary 14, 2021, 10:27 PM
EmanHave a small red one in the dash, never had low oil pressure but I noticed it didn't catch my eye when starting the car. I figured I might not notice it down track so I went with the ugly one you don't want. It's a red one that looks like a shift light mounted dead center my line of sight on the dash.
January 15, 2021, 05:29 AM
183Nquote:
Originally posted by Eman:
Have a small red one in the dash, never had low oil pressure but I noticed it didn't catch my eye when starting the car. I figured I might not notice it down track so I went with the ugly one you don't want. It's a red one that looks like a shift light mounted dead center my line of sight on the dash.
You don’t have to worry about seeing it down track. If that oil pressure light comes on under full power the engine is already broken. And if it does have catastrophic failure, it takes a few seconds for the oil pressure to bleed down and turn the light on.
IMO about the only thing an oil pressure light is good for is to catch a pump pickup that fell off after the burnout or driving around. Billet oil pump solves that issue.
January 15, 2021, 06:17 AM
BG7X77I appreciate the feed back! I have decided to take multiple ideas and implement. Type location and sensor. I understand what you are saying about too late 183, don't you think the faster you catch it the less potential total damage that would be done and could save some bucks.
BG
January 15, 2021, 06:46 AM
BG7X77quote:
Originally posted by Eman:
Have a small red one in the dash, never had low oil pressure but I noticed it didn't catch my eye when starting the car. I figured I might not notice it down track so I went with the ugly one you don't want. It's a red one that looks like a shift light mounted dead center my line of sight on the dash.
I was talking about the oval red trailer light look light. I thought about the thin shift light type size of a sharpie. I like the bright Ozmium LED idea over top of the gauge. I would post a pic but I still haven't been able to get that to work correctly.
Thanks again!!! Cheers!
BG
January 15, 2021, 07:15 AM
SCDIV1I installed one in my dragster dash...
Just a small panel type light with a std bulb and it's easy to see day or night....15lb switch
I once broke an oil pump off on a burnout and never saw the gauge at zero !
I made half a run and torched the crank.
Had to align hone the block and get a new crank...the light would have easily saved the day on that one....
I had a Moroso Accumulator on my current car for years
I took it off last year and saw that light start to come on in the shutdown area on one run.......
Now I'm thinking about putting the Accumulator back on.....but I sold the one I had !
January 15, 2021, 08:33 AM
Mike NitzscheMy camaro idles at 10-15 psi, so a light would almost definitely be on at idle. Funny story though. I broke my oil pump. SBC Melling deal about 10 years old. Snapped right off at the base. I realized I had 0 oil pressure after getting my slip and shut it down. Absolutely no damage and I'm on my second season after the break without disassembling the motor. My roadster is pretty violent in the burnouts, so I assume that's what broke it, but did the pump somehow hang together for an 1/8 pass? Did I make a pass with no oil pressure? Don't know, but I put a Moroso billet pump in.
January 15, 2021, 08:44 AM
speedwrench44Look at LED truck marker lights, lots of options
Dave
January 15, 2021, 09:02 AM
CURTIS REEDLots of LED options on ebay. I used some similar to these and have 6 of them around my oil pressure gauge. I bought them years ago and had to assemble and wire them myself.
https://www.ebay.com/itm/10X-R...5:g:9R8AAOSwkIJc0knJ
____________________________
2017 and 2018 Osage Casinos Tulsa Raceway Park No-Box Champion
2018 Div4 Goodguys Hammer award winner
January 15, 2021, 09:07 AM
CURTIS REEDquote:
Originally posted by SCDIV1:
Now I'm thinking about putting the Accumulator back on.....but I sold the one I had !
Man Rich I wish I had known. I just sold one of the Moroso heavy duty versions that has the screw on end caps for around half price. It was brand new in the box. I ended up with 2 of them from Summit because the gauge was crushed on the first one I received. Crazy way they handled it but I couldn't complain.
____________________________
2017 and 2018 Osage Casinos Tulsa Raceway Park No-Box Champion
2018 Div4 Goodguys Hammer award winner
January 15, 2021, 09:07 AM
TOP38quote:
Originally posted by SCDIV1:
I installed one in my dragster dash...
Just a small panel type light with a std bulb and it's easy to see day or night....15lb switch
I once broke an oil pump off on a burnout and never saw the gauge at zero !
I made half a run and torched the crank.
Had to align hone the block and get a new crank...the light would have easily saved the day on that one....
I had a Moroso Accumulator on my current car for years
I took it off last year and saw that light start to come on in the shutdown area on one run.......
Now I'm thinking about putting the Accumulator back on.....but I sold the one I had !
Rich,
Low oil pressure during shut down is not a big issue. Faster cars and dragsters with wet sumps are the worse but again I haven't seen any issues from this. The one thing I do see on the faster cars with spragless converters is the cap side of rod bearings seeing a good amount of load since the converter couples the drivetrain to the motor forcing engine braking! When I freshen my motor and others I see, the cap side of the rod bearings look worse that the rod side due to this load, and some of the block side mains too! It's not a lack of oil deal either, high loading with some bearing fatigue. I recently switched to a converter with a diode to help this issue and I also kill the motor just after crossing the finish line. I had thought about trying the Moroso Accumlator but Clevite said the bearings look good with no oiling issues, they just have a service life based on loading like everything else!
January 15, 2021, 09:16 AM
BG7X77Top.
Really good info on bearings and converters. Thank you for the enlightenment!! Good stuff!!! I still have a sprag but was seriously considering changing to a spragless.
BG
January 15, 2021, 09:41 AM
183Nquote:
Originally posted by BG7X77:
I appreciate the feed back! I have decided to take multiple ideas and implement. Type location and sensor. I understand what you are saying about too late 183, don't you think the faster you catch it the less potential total damage that would be done and could save some bucks.
I don’t think so. The driver will know it’s hurt before the light tells you, assuming a 20# light and you were wide open throttle. If it breaks a rod or something catastrophic obviously you’ll know it. If the oil pump or pickup breaks off or it loses oil pressure for some other odd reason you’ll feel the motor tighten up before the light turns on. Happened to me and I have it on video and data logger graph. I wasn’t lucky enough to have my pump break off after the burnout or at the time slip booth, it broke about 700 feet out, felt it tighten up so I let off. Then my oil pressure light came on. I caught it before any bearings spun but the crank still got hot. Now all 3 of my engines have billet pumps.
When we got my wife’s car it didn’t have an oil light. We rewired it this winter and considered putting one in but didn’t. She checks the gauge after the burnout and before staging, and we have data loggers to monitor during a run and shut down. But really with the billet pump I can’t think of a failure that the light would save. If the shaft or dist gear fails the engine will shut off anyway.
January 15, 2021, 09:57 AM
SCDIV1quote:
Originally posted by TOP38:
quote:
Originally posted by SCDIV1:
I installed one in my dragster dash...
Just a small panel type light with a std bulb and it's easy to see day or night....15lb switch
I once broke an oil pump off on a burnout and never saw the gauge at zero !
I made half a run and torched the crank.
Had to align hone the block and get a new crank...the light would have easily saved the day on that one....
I had a Moroso Accumulator on my current car for years
I took it off last year and saw that light start to come on in the shutdown area on one run.......
Now I'm thinking about putting the Accumulator back on.....but I sold the one I had !
Rich,
Low oil pressure during shut down is not a big issue. Faster cars and dragsters with wet sumps are the worse but again I haven't seen any issues from this. The one thing I do see on the faster cars with spragless converters is the cap side of rod bearings seeing a good amount of load since the converter couples the drivetrain to the motor forcing engine braking! When I freshen my motor and others I see, the cap side of the rod bearings look worse that the rod side due to this load, and some of the block side mains too! It's not a lack of oil deal either, high loading with some bearing fatigue. I recently switched to a converter with a diode to help this issue and I also kill the motor just after crossing the finish line. I had thought about trying the Moroso Accumlator but Clevite said the bearings look good with no oiling issues, they just have a service life based on loading like everything else!
I always ignored the LOP during shutdown issues. I had a LOP light on my Vega 30+ years ago and it would come on after a burnout....It annoyed me and was distracting so I took the bulb out....Stock GM Corvette pan....terrible oil control in a 9 second car...
I clicked my car into neutral after seeing the light flicker at MG back in Sept......
I've taken engines apart that had bearings like new and also just the opposite.....some issues and some torched bearings or worse.....so I am not against using the Accumulator
I'm using the Moroso steel pan 21049 or 21047...don't recall the exact number......had a about 8 qts in the engine total....
Fast cars lose pressure during braking.....dragsters ...not really a big deal as you say.....BUT scuffing a bearing can lead to worse...
Wheelstanding cars and real hard leaving Stock and SS type cars might aerate the oil during that wheelstand and are way more likely to hurt something.....You see a lot of Accumulators in those cars and I sold mine to a Stocker racer.....
The best steel pan for holding Oil pressure on a fast car with a BB chev was a Milodon....IIRC..
I thought the Moroso's would be good but my LOP light said NOPE.....
January 15, 2021, 10:13 AM
TOP38Rich
I haven't seen a hurt bearing from LOP in the shutdown, but I can't say it can't happen. Oil control, return and capacity all play a roll here. Wheel standing cars are another issue for sure.
Moroso now makes a smaller Accumulator, whether it's needed or not is certainly application related by adding one can't hurt.